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Coyotes-Wolves-Cougars.blogspot.com

Grizzly bears, black bears, wolves, coyotes, cougars/ mountain lions,bobcats, wolverines, lynx, foxes, fishers and martens are the suite of carnivores that originally inhabited North America after the Pleistocene extinctions.
This site invites research, commentary, point/counterpoint on that suite of native animals (predator and prey) that inhabited The Americas circa 1500-at the initial point of European exploration and subsequent colonization.
Landscape ecology, journal accounts of explorers and frontiersmen, genetic evaluations of museum animals, peer reviewed 20th and 21st century research on various aspects of our "Wild America" as well as subjective commentary from expert and layman alike. All of the above being revealed and discussed with the underlying goal of one day seeing our Continent rewilded.....Where big enough swaths of open space exist with connective corridors to other large forest, meadow, mountain, valley, prairie, desert and chaparral wildlands.....Thereby enabling all of our historic fauna, including man, to live in a sustainable and healthy environment. - Blogger Rick

DNR continues to shed light on deer

Hunters continued to be the leading cause of buck mortality in Wisconsin - and by a wide margin.

Fawn survival was higher in 2012, likely due to an early spring. The leading source of fawn mortality continues to be predators.

And the buck recovery rate was in line with estimates used over the years by state deer managers.

These are among the leading findings of the second full year of Wisconsin deer research.

A 2012 summary of the state's deer research was released recently by the Department of Natural Resources.

The results don't vary a great deal from the first year. The most notable difference was markedly higher survival of fawns (47% in 2012 vs. 27% in 2011) through 7 months of age in the northern study area.

"The relatively mild winter and early green-up is likely a big factor there," said Karl Martin, chief of the DNR's wildlife research section. "It points out the value of doing multiyear studies, so you get as much data over as long a time period as possible."

Similar to the first year, 73% to 92% of the buck mortality was due to hunters.

And also in line with the first year, fawns survived at higher rates in the eastern study area (63% through seven months) than in the north (47%).

The studies were initiated by the DNR in late 2010 at the request of hunters.

The work is formally divided into two projects: a buck mortality study and a fawn recruitment and predation study.

The buck study is intended to improve the accuracy and precision of the Sex-Age-Kill deer population model. The fawn study is designed to improve understanding of recruitment rates and causes of mortality.

To gain insight into regional differences in Wisconsin's deer, the studies are taking place in two areas: A 3,557-square-mile area in Sawyer, Price and Rusk counties (representative of the northern forest) and a 2,318-square-mile area in Shawano, Waupaca and Outagamie counties (mixed agricultural habitat).

The northern study area is 34% public land, 80% forested, has wolves, bears, coyotes and bobcats as the primary predators and a road density of about 1.6 miles per square mile.

The eastern study area is 3% public, 35% forested, has coyotes and bobcats as the primary predators and about twice the road density as the northern study area.

The hunting pressure is higher, too, in the eastern study area, with between 21 and 36 hunters per square mile of deer range on opening day of the gun deer season. In the north, it's between eight and 15 hunters per square mile.

Blood and other samples taken from deer in the study also provide insight into the health of the herd.

At a cost of more than $2 million, the work represents Wisconsin's largest investment in deer research. The projects are funded through the Federal Aid in Wildlife Restoration Act, an excise tax on hunting and shooting equipment.

The project is entering its third year of field work. Data for the first year were first collected in late 2010 through late 2011. The most recent report summarizes data from January 2012 through January 2013.

To study the deer, researchers and volunteers capture and place radio collars on the animals.

The signals are then monitored to track the animals' movements. If a mortality signal is received, the researchers attempt to find the animal and determine the cause of death.

Among the findings over the last year:

Adult male deer are most targeted by hunters. In the north, adult buck survival was 31%; in the east, it was 27%. Between 73 and 91% of the mortality of adult bucks was due to hunters, mostly during the gun deer season in November.

In the north, hunters killed eight adult bucks (five during the archery season and three during gun season), wolves killed two and coyotes took one.

In the east, hunters killed 11 adult bucks (eight firearm, one archery, one wounding). One adult buck was also killed by a vehicle. Predators did not kill an adult buck in the east.

Yearling male deer survival was 52% in the north and 58% in the east. Hunters caused from 82 to 92% of the mortality. In the north, hunters killed 11 yearling bucks (nine with firearms and two with archery equipment); predators killed no yearling bucks last year in this study area.

In the east, hunters killed 14 yearling bucks, two were killed in vehicle collisions and one was killed by a coyote.

Among adult female deer, 73% survived the year in the north and 86% survived in the east.

Most fawns were born in late May in both study areas. Most fawn mortalities occurred within a few weeks of birth.

Predators were the leading cause of fawn mortalities (55%) in both study areas. Unknown predators (the researchers were unable to identify the predator) caused the most fawn mortality in the north, followed by bears. In the east, coyotes were the top predator on fawns (five), but road kills took nearly as many (four).

So with two years of data, how are the studies shaping up?

"The buck recovery rates from 2012 are in line with what we've historically used for the two areas," said Robert Rolley, DNR wildlife population ecologist. "We'll be interested to see more years of data before we make any conclusions."

One challenge the researchers have is sample size. They hope to get more animals "on the air" this year.

The results of this winter's trapping efforts have been good, according to Jared Duquette, DNR deer researcher.

As of Jan. 26, crews in the northern study area captured 12 adult bucks, 14 button bucks and 33 does.

Two Massachusetts Eastern Coyotes at their den site

Eastern Wolf in Algonquin Provincial Park, Ontario, Canada

Aldo Leopold--3 quotes from his SAN COUNTY ALMANAC

"We abuse land because we regard it as a commodity belonging to us. When we see land as a community to which we belong, we may begin to use it with love and respect."

Aldo Leopold

"A thing is right when it tends to preserve the integrity, stability and beauty of the biotic community. It is wrong when it tends otherwise."

Aldo Leopold

''To keep every cog and wheel is the first precaution of intelligent tinkering."

Wildlife Rendezvous

Like so many conscientious hunters and anglers come to realize, good habitat with our full suite of predators and prey make for healthy and productive living............Teddy Roosevelt depicted at a "WILDLIFE RENDEZVOUS"

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This is a personal weblog. The opinions expressed here represent my own and not those of my employer. In addition, my thoughts and opinions change from time to time…I consider this a necessary consequence of having an open mind. This blog is intended to provide a semi-permanent point in time snapshot and manifestation of my various thoughts and opinions, and as such any thoughts and opinions expressed within out-of-date posts may not be the same, nor even similar, to those I may hold today. All data and information provided on this site is for informational purposes only. Rick Meril and WWW.COYOTES-WOLVES-COUGARS.COM make no representations as to accuracy, completeness, suitability, or validity of any information on this site and will not be liable for any errors, omissions, or delays in this information or any losses, injuries, or damages arising from its display or use. All information is provided on an as-is basis.